Thermometer



E. RICHARDSON.

THERMOMETER. APPLICATION r1LED1uLY\2,192\.

1,423,257. Patented July 18, 1922.

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Application led July 1 2,

T 0 all wiz-0m. t may concern Be it known that I, ERNEST RICHARDSON, acitizen of the United States, residing at College Hill Borough, BeaverCounty, and State of Pennsylvania, have invented new and usefulImprovements in Thermometers, of which the following is specification.

My invention relates to thermometers in connection with suitablemountings therefor. The object-of this invention isr to provide forthermometers suitable mountings adapted to contain advertising matter.

Referring to the accompanying drawing, Fig. 1 is a front elevation ofone form of my invention; Fig. 2, an enlarged rear elevation ofthe'lower part of Fig. 1; Fig. 3, a section on the line III-III of Fig,2; Fig. 4, a similar section of a second form of my invention; and Fig.5, an enlarged detail of a part of Fig. 4.

0n Figs. 1, 2, and 3 of the drawing, I show a stamped sheet-metal framehaving the plane body 1, and the endless flange 2 around its edges. Iarrange a thermometer on the frame which has ample space for advertisingmatter as shown.

In a suitable opening in the body 1, I mount the outer end of the shaft3, which carries the hand or pointer 4- which travels over suitabletemperature indicia on the outer face of the body. kThe rear end of theshaft 3 is mounted inthe bracket 5 secured to the rear face of the bodyby the screws 6. A thermostatic coil or helix is mounted between thebody 1 and the bracket 5,-one end of the helix being secured to theshaft 3 and the other end to the post 7 secured to the back of thebody 1. y

The pointer and the indicia are covered by a suitable transparent coverglass 8 mounted on a spacing ring 9 resting against the outer face ofthe body 1. A sheet-metal casing 10 surrounds the ring 9 and has itsouter end turned inwardly so as to engage the outer face of the coverglass 8 and its inner end provided with tongues 11 which extend throughholes 12 in the body 1 and are bent or clinched aga-instY the rear faceof the body. 'Ihe frame is preferably covered with a coat of enamel 17.

In Figs. a and 5, I dispensewith the separate spacing ring and providein its place the Lnnnlar shoulder 13 integral with the body 1a. Anannular bead 14C also integral with the body 1 extends out in front ofthe OF COLLEGEHILL BOROUGH, PENNSYLVANIA.

Specification of Letters Patent.

@as .das e THERMOMETER.

Patent-ea .muy is, reas. 1.921. serial N. esami.

cover glass 8. This bead provides a seat for the sheet-metal ring 15which has a U- shaped cross-section permitting it to t the said bead andhave its inner edge rest on the outer face of the cover glass. rlhe ringmay be secured to the body 1fL in various ways, as by means of the bolts16 which 'pass through the ring 15 and the bead and have their heads onthe ring and their inner ends in the nuts 18 in the hollowside of thebead.

rIhe frame may be supplied with` ventilating openings of any type foradmitting air to the interior of the frame. I have marked these openings19.

I claim- 1. A thermometer kcomprising a sheetmetal frame with a marginalflange forming a hollow casing with the rear side open and having around bearingppening, a bracket lying on the inner face of the frame andwholly within the same and having a bearing-opening in alinement withthe otherI bearing-opening, means adjacent to the opening in the bracketfor securing the latter to the frame, a shaft mounted in the saidopenings, a pointer on the outer end of the shaft beyond the frame,there being tem perature indicia on the outer face of the frame(5o-extensive with the range of the pointer, a thermostatic coil betweenthe frame and the bracket, having one end Xed and the other end attachedto the shaft, a cover glass for the pointer, means spacing the glassfrom the pointer and indicia, and a ring attached to the frame andsecuring the glass in lined relation to the frame.

2.' A thermometer comprising a sheetmetal frame with a marginal flangeforming a hollow casing with the rear side open and having a roundbearing-opening, a bracket `lying on the inner face of the frame andwholly within the same and havingk a bearing-opening in alinement withthe other bearingopening, means adjacent to the opening in the bracketfor securing the latter to the frame, a shaft mounted in the saidopenings, a pointer on the outer end of the shaft beyond the frame,there being teinperature indicia on the pointer, a thermostatic coilbetween the frame and the bracket, having one end Xed and the other endattached to the shaft, a cover glass for the pointer, means integralwith the frame for spacing the glass from outer face of the frameco-eXtensive with the range of the' the pointer and indicia, and e` ringattached end attached 'to the shaft, a cover glass for to the freine andSecuring the glass n fixed the pointer, means integral with the framerelation to the frame. for spacing the glass from the pointer :ind

3. A hollow stamped sheetdnetal frame, indici@ the 'frame having e bea-dprojecting 15 a bracket on the rear face thereof, a shaft` in front ofthe glass, e ring on the bead and mounted in the freine and the bracket,a, engaging the outer face of the glass, und pointer on the outer end ofthe Shaft, there means for securing the ring` to the freine. beingtemperature indicia on the fra-me co- Signed et Pittsburgh., Penne.,this 11th extensive With the range of the pointei,. e day of 5111551921.10 therniostzttic coil between the frame and the bracket, having one endfixed and the other n ERNEST RICHARDSON;

